Lead screw with upper limit switch and lower limit switch

Abstract

The invention relates to a lead screw with an upper limit switch and a lower limit switch. The lead screw comprises a lead screw upper part and a lead screw lower part which are connected through a threaded rod, wherein the end part of the threaded rod is provided with a gear I and a gear II, and the gear I is meshed with the gear II; the lead screw is provided with an upper limit switch and a lower limit switch, the upper limit switch comprises a blocking piece, an upper limit switch component and a sliding seat, and the sliding seat is provided with an upper limiting moving rod and a pressing rod; the upper limit switch component comprises an upper limiting micro switch, and the upper limiting micro switch is provided with an upper limiting contact piece; and the lower limit switch comprises an ejector rod and a lower limit switch component, the lower limit switch component comprises a lower limit micro switch and a lower limit moving rod, the lower limit micro switch is provided with a lower limit switch salient point, the lower limit moving rod is provided with a wide part and a narrow part, and the wide part and the narrow part are connected through a slope. The lead screw is simple in structure, high in sensitivity and almost zero in failure rate, and contributes to stable lifting and effective limiting of a lift platform.

Description

technical field [0001] The invention relates to a screw rod, in particular to a screw rod with an upper limit switch and a lower limit switch, which is mainly used for lifting a lifting platform. Background technique [0002] The screw rod is the core component of the lifting platform. The quality and function of the screw rod are related to whether the lifting platform is stable and whether it can achieve silent lifting and other issues. Therefore, in order to realize the superiority of the lifting platform, the first task is to find a screw rod with superior performance. However, the stroke limit in the screw rod is a technical problem at the present stage. The stroke limit switch in the prior art has a complex structure, difficult installation, low sensitivity, and a high failure rate. It often occurs that the stroke limit switch is not timely limited, resulting in Excessive travel can not get a satisfactory user experience. [0003] Therefore, developing a screw rod wi...

AI Technical Summary

Problems solved by technology

However, the stroke limit in the screw rod is a technical problem at the present stage. The stroke limit switch in the prior art has a complex structure, difficult installation, low sensitivity, and a high failure rate. There are often situations where the limit is not timely, resulting in Excessive travel, unable to get a satisfactory user experience

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